Electric Vehicle Drive
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Here is an alternative to using complicated chopper circuits to control the voltage to (and thus the speed of) your electric motor drive. This circuit takes advantage of the multi-cell construction of battery banks used in most electric vehicles. The circuit rearranges the batteries in different series combinations to get many steps in voltage to the motor. The higher the voltage of the battery bank, the more cells it will have, and the more steps are available between zero and full voltage to the motor. At constant speed, the circuit will be static, unlike chopper circuits that are always chopping up the voltage to the motor. The clever arrangement of batteries in groups of 1, 2, 4, 8, etc. cells allows us to build the circuit with minimum switching components and lower cost. The circuit can be built with all electromechanical components, because nothing in the design is complex enough to require electronic components. | |
| Patent 6140799 | ||
| Details: | Return to Home Page | |
| Motor Circuit Diagram | ||
| Patent | ||
| Description | ||
| Name: | Mark Thomasson | |
| Email: | markthomasson at verizon dot net | |